namespace _10_3
{
    internal class Program
    {
        static void Main(string[] args)
        {
            const string s4 = "    ";
            int nYear = DateTime.Today.Year;
            for (int nMonth = 1; nMonth <= 12; nMonth++)
            {
                DateTime d1 = new DateTime(nYear, nMonth, 1);
                Console.WriteLine("{0}/{1}", d1.Year, d1.Month);
                Console.WriteLine("Su Mo Tu We Th Fr Sa");
                int iWeeks = (int)d1.DayOfWeek;
                int iLastDay = d1.AddMonths(1).AddDays(-1).Day;
                for (int i = 0; i < iWeeks; i++)
                {
                    Console.Write(s4);
                }
                for (int iDay = 1; iDay <= iLastDay; iDay++)
                {
                    Console.Write("  {0:00}  ", iDay);
                    if ((iDay + iWeeks) % 7 == 0)
                    {
                        Console.WriteLine();
                    }
                }
                Console.WriteLine();
            }
        }
    }
}